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Kazeer [188]
3 years ago
5

18÷3(5_4+1) Answer? ​

Mathematics
2 answers:
Harlamova29_29 [7]3 years ago
8 0

Answer:

3

Step-by-step explanation:

18 ÷ 3 ( 5 - 4 + 1 )  

18 ÷ 3 ( 2 )  

18 ÷ 6

= 3

Roman55 [17]3 years ago
7 0

Answer:

36 if you meant a base of 4, or 24 if you meant a subtraction of 4 :))

Step-by-step explanation:

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Solve the simultaneous equations. You must show all your working to find x and y. 1/2x -3y = 9 5x y + y = 28
Anastaziya [24]

<em>The right question is:</em>

\frac{1}{2}x - 3y = 9

5x + y = 28

Answer:

<em></em>x = 6<em> </em>

y = -2<em></em>

<em></em>

Step-by-step explanation:

Given

\frac{1}{2}x - 3y = 9

5x + y = 28

Required

Solve for x and y

Make y the subject of formula in the second equation

y = 28 - 5x

Substitute y = 28 - 5x in the first equation

\frac{1}{2}x - 3(28 - 5x) = 9

Open the bracket

\frac{1}{2}x - 3*28 - 3*- 5x = 9

\frac{1}{2}x - 84 + 15x = 9

Collect Like Terms

\frac{1}{2}x  + 15x = 9+ 84

\frac{x}{2}  + 15x = 9+ 84

\frac{x+30x}{2} = 93

\frac{31x}{2} = 93

Multiply both sides by 2

2 * \frac{31x}{2} = 93 * 2

31x = 186

Divide both sides by 31

\frac{31x}{31} = \frac{186}{31}

x = \frac{186}{31}

x = 6

Recall that y = 28 - 5x

So;

y = 28 - 5 * 6

y = 28 - 30

y = -2

Hence;

<em></em>x = 6<em> and </em>y = -2<em></em>

8 0
2 years ago
Read 2 more answers
115.2 divided by 9.6
Monica [59]

Answer:

12

Step-by-step explanation:

6 0
3 years ago
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Please help me it says find the measure of c and b and I don’t know how if you can help me with this exam it would be much appre
noname [10]

Answer:

b=20

C=160

Step-by-step explanation:

160+b= 180 (sum of angle on the straight line)

b=180-160

b=20

b+c =180 (sum of angle on the straight line)

20+c=180

c=180-20

C=160

6 0
2 years ago
What is the midpoint of the segment shown below?
d1i1m1o1n [39]

Answer:

A

Step-by-step explanation:

Calculate the midpoint using the midpoint formula

[ 0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]

with (x₁, y₁ ) = (- 1, 5) and (x₂, y₂ ) = (5, 5)

midpoint = [ 0.5(- 1 + 5), 0.5(5 + 5) ]

              = [ 0.5(4), 0.5(10) ] = (2, 5 ) → A

3 0
3 years ago
Read 2 more answers
How do you do this? I need help
sammy [17]

Answer:

percents to decimals

a) .02 b) .79 c) 1.35

Step-by-step explanation:

for converting percents to decimals you always move the decimal over to the left 2 times

6 0
3 years ago
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